Products

Isopropyl Alcohol

    • Product Name: Isopropyl Alcohol
    • Chemical Name (IUPAC): propan-2-ol
    • CAS No.: 67-63-0
    • Chemical Formula: C3H8O
    • Form/Physical State: Liquid
    • Factroy Site: No.70 Danzishi Street,Nanan District,Chongqing,China
    • Price Inquiry: sales2@liwei-chem.com
    • Manufacturer: Chongqing Chuandong Chemical (Group) Co., Ltd
    • CONTACT NOW
    Specifications

    HS Code

    784128

    Chemical Name Isopropyl Alcohol
    Chemical Formula C3H8O
    Molecular Weight 60.10 g/mol
    Appearance Colorless liquid
    Odor Sharp, musty odor
    Boiling Point 82.6 °C
    Melting Point -89 °C
    Solubility In Water Miscible
    Density 0.786 g/cm³ at 20°C
    Flash Point 11.7 °C
    Autoignition Temperature 399 °C
    Vapor Pressure 44 mmHg at 25°C
    Refractive Index 1.377 (at 20°C)
    Flammability Highly flammable
    Cas Number 67-63-0

    As an accredited Isopropyl Alcohol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A clear, sturdy 500ml plastic bottle with a secure screw cap, prominently labeled “Isopropyl Alcohol 99%” and safety warnings.
    Container Loading (20′ FCL) Container loading (20′ FCL) for Isopropyl Alcohol involves safely packing drums or IBCs, ensuring secure transport and regulatory compliance.
    Shipping Isopropyl Alcohol should be shipped in tightly sealed, labeled containers, away from heat, sparks, or open flames. It is classified as a flammable liquid (UN1219) and must comply with relevant regulations such as DOT, IATA, and IMDG. Secondary containment and proper ventilation are recommended to prevent leaks or vapor buildup during transport.
    Storage Isopropyl Alcohol should be stored in tightly closed containers in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as oxidizers. It is highly flammable, so keep away from ignition sources. Use approved safety containers and clearly label them. Proper grounding and bonding are essential during transfer to prevent static discharge.
    Shelf Life Isopropyl alcohol typically has a shelf life of about 2-3 years when stored properly in a tightly sealed, cool, dry place.
    Application of Isopropyl Alcohol

    Purity 99.9%: Isopropyl Alcohol Purity 99.9% is used in electronic component cleaning, where rapid residue-free drying and effective removal of contaminants is achieved.

    Viscosity Grade Low: Isopropyl Alcohol Viscosity Grade Low is used in precision lens cleaning, where streak-free clarity and reduced residue are ensured.

    Molecular Weight 60.1 g/mol: Isopropyl Alcohol Molecular Weight 60.1 g/mol is used in pharmaceutical compounding, where compatibility with various solutes and consistent dissolution rates are obtained.

    Stability Temperature 25°C: Isopropyl Alcohol Stability Temperature 25°C is used in cosmetic formulation laboratories, where stable solvent properties and prolonged shelf life are maintained.

    Boiling Point 82.6°C: Isopropyl Alcohol Boiling Point 82.6°C is used in surface disinfection protocols, where fast evaporation minimizes downtime and risk of microbial regrowth.

    Water Content <0.5%: Isopropyl Alcohol Water Content <0.5% is used in microelectronics fabrication, where low water levels prevent oxidation and ensure high yield.

    Melting Point -89°C: Isopropyl Alcohol Melting Point -89°C is used in laboratory freezing mixtures, where low melting point enables rapid and efficient cooling.

    Evaporation Rate Fast: Isopropyl Alcohol Evaporation Rate Fast is used in ink and dye removal processes, where quick drying reduces smearing and processing time.

    Nonionic Nature: Isopropyl Alcohol Nonionic Nature is used in medical device cleaning, where non-reactivity ensures material compatibility and safety.

    Density 0.786 g/cm³: Isopropyl Alcohol Density 0.786 g/cm³ is used in paint and coating formulations, where optimal viscosity adjustment and even application are achieved.

    Free Quote

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    Certification & Compliance
    More Introduction

    Isopropyl Alcohol: Practical Benefits and Real-World Differences

    Commitment to Consistent Purity

    As a chemical manufacturer deeply rooted in the day-to-day realities of production, we know that isopropyl alcohol isn’t a commodity people can take for granted. What is called “IPA” in many labs and plants, we see as the result of deliberate decisions at every stage from raw material sourcing to distillation. Each drum or bulk shipment that comes out of our filling lines is backed by the habits, hands, and problem-solving our team has built over years. The reason that matters is simple: the integrity of the entire end use — whether in pharmaceuticals, electronics, cleaning agents, medical device disinfection, or printing inks — can be traced back to the purity and reliability of the original isopropyl alcohol used.

    Understanding Specifications with a Hands-On Perspective

    Our standard production lines deliver isopropyl alcohol at concentrations of 99.9% and 70%. Some customers use 99.9% pure IPA as a laboratory reagent or solvent for specialty chemical synthesis, while 70% finds widespread service in sanitization and surface cleaning. The choice between 99.9% and 70% isn’t academic; it’s a response to real, physical properties. Pure isopropyl alcohol evaporates rapidly and leaves minimal residue, which helps in electronics manufacturing where water or foreign ions can’t be tolerated. On the other hand, 70% compositions allow broader antimicrobial action — water in the solution assists with cell penetration, making it more effective as a sanitizer on hard, non-porous surfaces.

    The attention to “specifications” isn’t paperwork — it’s what keeps a device safe to touch or a piece of glass lint-free. Specifications rule what’s considered food-grade, cosmetic-grade, or technical-grade in this industry. By developing our own manufacturing processes — not through outsourcing, but by direct oversight — we control water addition, trace impurity management, and packaging sanitation. We do this not because customers demand it, but because inconsistent batches create more trouble down the production chain than is easily measured on a quality certificate.

    Purity: Where Experience Meets Regulation

    Regulatory compliance is more than a checkbox for us. Our experience shows that food, pharma, and biotech sectors in particular expect unmatched documentation: lot traceability, certificates of analysis, assurance of absence of methanol or other byproducts, records for each container. That also means maintaining a rigorous supply chain, working with known-accredited raw material suppliers, monitoring all production inputs, and keeping our people trained and facilities regularly audited. While other producers may settle for “technical grade” meant for degreasing or blending, we only label batches as USP or EP grade after extensive testing in our own lab.

    Any hands-on chemical producer will have stories about the small details — a relay valve sticking, climate shifts affecting condensation, or a shipment held because of perceived off-odor. Our lab and production operators bring those practical lessons directly into quality control. Specifications don’t just keep us compliant, they prevent incidents and waste at our customers’ own plants.

    A more stringent approach often results in higher unit costs, but experience has taught us that it’s not worthwhile to cut corners. Issues such as leftover residue after evaporation, unexpected water levels, or contamination by undesired isomers turn up quickly in feedback loops from critical users. For us, it’s better to address potential issues at the point of manufacture rather than having our customers discover problems in the field or on audit day.

    Usage in the Real World

    Anyone who’s actually worked with isopropyl alcohol on the shop floor, in a cleanroom, or in a medical processing plant knows its unique role. It cleans adhesives and greases from electronics parts, flushes printer components, and removes fingerprints from glass. We deliver tanker loads to companies that fill bottles for consumer routes. Hospitals rely on it to disinfect shared surfaces and instruments. In our own plant, we use it as a rapid-drying agent for cleaning filling machinery between runs.

    You can find isopropyl alcohol wiping down analytical equipment in the lab, preparing culture flasks in biomanufacturing, or swabbing skin before a routine blood draw. In all those settings, what matters isn’t just “does it work,” but “will this leave anything behind?” Impurities, mixes of high-boiling aromatic hydrocarbons, or even improper closure seals ruin the reason for choosing this highly volatile solvent in the first place.

    Direct Comparison: Isopropyl Alcohol vs. Other Alcohols

    It helps to speak from manufacturing experience about how isopropyl alcohol relates to the other alcohols often used in industrial settings. While ethanol and n-propanol share some applications, isopropyl alcohol’s properties set it apart for several reasons.

    Isopropyl alcohol evaporates more rapidly than n-propanol, and doesn’t leave as much odor as some lower-grade ethanol batches. Ethanol, produced both by fermentation and synthetic hydration, is subject to tight regulation due to excise duties and denaturing requirements in many countries. This affects pricing and availability. Isopropyl alcohol, by contrast, is usually produced from petroleum feedstocks using a well-established hydrolysis process in our reactors. Our operators monitor the entire reaction by gas chromatography, so we pick up minor shifts in byproduct levels before they snowball into production hiccups.

    Experience shows isopropyl alcohol is less aggressive a solvent than acetone, but still more effective for loosening both polar and non-polar contaminants compared to ethanol. Its lower evaporation point means it can dry surfaces in seconds when applied in thin layers, without damaging sensitive polymers. These characteristics make IPA a go-to for electronics, optics, and mechatronic assembly, where even minute residue or moisture can alter performance.

    On the safety front, the difference is real. Isopropyl alcohol has less skin absorption risk than methanol and a higher flash point than some lighter solvents, but there’s still a need to train users on correct handling, fire safety, and storage. Over the years, we’ve seen a few plant-level incidents: leaks from poorly-maintained valves, fumes building up in unventilated mixing rooms, or accidental mixing with incompatible chemicals. Every improvement to our drum labeling, closure design, or staff training ultimately came from an incident that proved “specs” only go so far — practice counts just as much as policy.

    How We Approach Packaging and Delivery

    There is a world of difference between drum-filling for large manufacturers and small-container filling for end-user businesses. As manufacturers ourselves, we learned early what can go wrong — steel drums develop rust spots if even a drop of water enters before isopropyl alcohol, HDPE containers deform from heat changes in storage, and closures can fail if exposed to constant vibration in transit.

    Our packing line operators record seal integrity checks batch by batch. For pharmaceuticals and medical devices, we dedicate filling lines entirely to isopropyl alcohol on those days, followed by mandatory reactor and line flushes. Quality goes beyond just what’s inside the drum. Clean, dry containers, reliable vent seals, clear tamper evidence, and lot coding prevent many storage and traceability headaches. For regular customers, we work out storage rotation schedules and share past contamination case studies so they can tweak their own facilities.

    More of our partners ask about sustainability these days, not just cost per liter. We’ve introduced supply chain traceability for packaging materials and stepped up recycling of process washwater. Fielding these requests means building skills within our production team. We document changes to packaging, run pilot fills, and monitor every feedback report that crosses our desks, especially unusual customer complaints — like haze or “off” notes in packaged product — that often signal subtle shifts in materials upstream.

    Dealing with Shortages, Market Surges, and Quality Issues

    Customers rarely notice isopropyl alcohol until there’s a shortage or sudden surge in demand. Times of crisis, like public health emergencies, test every link in the chain — raw material supplies, railcar access, even the staffing of production shifts. We remember the scramble to fulfill new orders for sanitation products, racing to secure additional tank space, rerouting deliveries overnight, and keeping lines staffed around lockdowns. During those periods, keeping up with essential production meant working double shifts, adapting production scheduling, and rerunning analysis on every outgoing shipment.

    Quality doesn’t slip just because pressure rises. When the temptation is to chase volume, we’ve learned that short cuts can double back as customer complaints or regulatory actions. We ran into upstream supply issues from time to time: barrels with off-specification acetone, process water exceeding conductivity thresholds, or valves on tankers compromised by improper cleaning. Each time, the solution has come from thorough real-time sampling, retaining close communication with our suppliers, and refusing to let anything leave the plant floor without passing retesting.

    Traceability takes on more importance during a crisis. Customers demand reassurance that the isopropyl alcohol in their order is exactly what the label says — often demanding real-time updates and every batch certificate in digital format, with direct line-of-sight to raw material origins and test results. We invested in secure digital record-keeping, QR-coded batch tracking, and rapid sample turnaround, embedding these skills as a permanent upgrade in our everyday process.

    Practical Issues, Ongoing Improvements

    Isopropyl alcohol may look like a solved problem, yet we know from experience that quality shifts, packaging leaks, or regulatory shocks can ripple across many industries. In this market, complacency is the biggest risk. Factories still spill isopropyl alcohol due to improper transfer pumps, sites experience odor complaints from open drum storage, and finished goods occasionally get rejected over non-compliant solvent residues.

    Each time we spot a recurring problem, we put together a small team to talk it over — not just managers, but line operators, maintenance crew, and QA lab staff. We tweak fill heights, trial new drum liners, send our quality staff on plant walk-throughs with PPE kits, and urge users to share failure reports instead of silently switching vendors. Our best improvements have come from moments like these — not from “one size fits all” fixes, but from paying close attention to what operators say about sticky valves, slow pours, or hidden residues after evaporation.

    Most customers rely on us not just for material, but for the knowledge we’ve picked up over time. We walk their floors when needed, examine rejected batches in their own labs, review analytical reports side by side with their teams, and sometimes bring in outside consultants to troubleshoot issues outside our core experience. Direct communication — not one-way datasheets — raised our reliability and keeps customer complaints from developing into disputes.

    Long-Term Partnerships, Accountability, and Trust

    The reason customers stick with us isn’t a badge or a brand. Chemical manufacturing is more relationship-driven than most realize. We run annual supplier audits with some of our largest partners, sharing upgrade plans, reviewing quality incidents, and improving feedback loops together. Over time, we often become the “emergency call” — the supplier customers turn to for advice when their own production runs into snags. Trust builds batch by batch, shipment by shipment, through consistent follow-through, transparency about issues, and open-handed technical support.

    Mistakes still happen — a seal cracks, a drum shows up late, a lot gets flagged for water content. The key is responding quickly, tracking root cause, and avoiding blame shifting. We own the process from reactor to loading dock, make corrections right away, and disclose everything back to the customer. That approach has saved several production relationships for us, even when problems were outside our direct area of control. Most customers have little patience for vague answers — what they want is a clear path from source to shipment, with details on what’s different about this batch versus the last.

    Innovation: Responding to New Demands

    Looking ahead, isopropyl alcohol’s role is expanding as new clients tap its properties for unexpected applications. In the past two years, we’ve supported development efforts in biotech, advanced electronics, and 3D printing by adjusting water content, surveying new packaging formats, and investigating lower odor thresholds for sensitive processes. Our research chemists work closely with end users, tuning purification or altering filtration points, and sometimes inventing new test protocols to screen for trace impurities that only certain clients detect.

    Regulatory frameworks evolve, asking not just for higher-purity IPA or better traceability, but lowering allowable residue limits and demanding environmental statements for every lot. Our team reads the fine print on every customer spec, even custom ones that differ from the norm, and we’re committed to configuring our processes to stay ahead of the regulations — not just for box-ticking, but because we’ve seen what happens when product fails the next link in the chain.

    Expectations are also changing in packaging sustainability, energy use, water recycling, and reporting transparency. We maintain open channels with packaging suppliers for post-consumer recyclate trials, invest in new solvent recovery units, and track environmental impacts batch by batch. As new rules appear — for example, phasing in circular economy requirements or scrutinizing transport emissions — our plant teams work alongside regulators rather than wait for mandates. Being ready for the next cycle of compliance means embedding change as standard practice, and drawing from the lessons accidents or successes bring.

    Supporting Knowledge with Real Experience

    Every bottle, drum, or bulk shipment of isopropyl alcohol is more than a chemical — it’s a link in a much larger story of health, safety, and technical progress. What we deliver comes from line operators’ patience, supply chain certainty, and the hard-earned habits of checking, double-checking, and following up long after loading. We answer customer questions because we’ve had to solve them ourselves. This is how real accountability looks in chemical manufacturing — not chasing the lowest price but building a standard every technician, engineer, and plant manager can depend on. Our knowledge comes from making, not just selling, and that’s why our customers know precisely what to expect when they pour from our drums.